Stoking mechanism.



called underfeed-stokers, which consist of ja Huid-cylinder, a ram-caseor cylinder into l Awhich coal is fed froma hopper, and a retort, :theretort being disposed at the inside of the boiler-chamber and theram-case and cylinthereof with respect to the furnace or boilerconnection with which the stoking mech- UNITED ji raented eJuly i4,isos.

v(DFFIGEO sTOKER COMPANY OFAMERIOA, oF'OI-IIOAGO, ILLINOIS, ACORPORATION OF NEW JERSEY.

sToKlNcl lvl EICHANISM;V

SP'EC'IICATION fmig part of rarsfratent N. 733,374, dated July 14,19oe'.

Application mea Aprii 24,1903.

To aZZ'whow/t it may concern:

Beit known that I, FRED A. DALEY, a citizen of the United States,residing at Chicago, 1 in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Stoking Mechanism, ofwhich the followingis a full, clear, concise, and eX- act description,reference being had to the accompanying drawings, forming a part of thisspecification.

My invention relates to stoking mechanism, and has forits Objectimproved construction thereof and improved disposition of the parts mismis utilized.

My invention is particularly adapted to soder at the Outside thereof.

Heretofore it has been the practice to place the retort at the inside ofthe boiler-chamber, so that the front flanged face thereof was disposedto the rear` of the furnace or boiler front. The ram-case, which wasprovided with a flange at its end, projected into an opening in theboiler-front to be bolted or otherwise fastened to the retort, theoutside face of the boiler-front and the outside face of the ram-casefiange being Hush by such disposition. v

When it was desired to inspect the interior of the ram-case, whichusually consisted yof a lower and an upper removable half, it wasnecessary after withdrawing the bolts which fastened the ram-case to theretort to move backward both the cylinder and the ram-case in order toremove the top portion of the ramcase, which in tsA normalposition-projected Within the boiler-front.

My invention provides means for removing the top portion of the ram-casefor the purpose of inspection without changing the position of the lowerpart of the ram-case, and to this end I arrange the retort within theboiler, so that the front face thereof projects into the opening in theboiler-front and iush Serial No. 155142. (No model.)

with the outside face of the boiler-front. The top portion of theram-case may now be bolted in the usual manner to the retort and noimpediment is oered to its ready removal from the lower portion of theram-case. The retort has rearwardly and upwardly extending side walls,the faces of the front ends thereof being disposed to aline with theinner face of the boiler-front, which boiler-front extends downwardbetween said faces and the upper portion of the flange on the removableramcase section. As the removable section is bolted to the retort, theboiler-frontis clamped and securelyheld to prevent warping thereof as itis heated.

I shall explain my invention more fully by reference to the accompanyingdrawings, in which- Figure 1 is a sectional view illustrating theapplication of my invention to a stoker of the underfeed type. Fig. 2 isa perspective view showing the disposition and manner of assembling theram-case parts and the retort with respect to the boiler-front. Fig. 3is a detailed view showing the construction of the ram-case and retortat the point of junction. Fig. 4 is an end view of the retort. Fig. 5 isa side View of the forward end of the retort.

Like characters of reference indicate like parts throughout the figures.

yA boiler 1 is suitably mounted upon a setting 2 and is adapted toreceive heat generated in the tire-chamber 3. A retort 4 is disposedwithin the boiler-chamber and is adapt- ,ed to receive fuel dischargedtherein from a ram-case 5, supplied from a hopper 6. Apiston 7 is causedto Oscillate in a Huid-cylinder 8 in a manner well known to thoseskilled in the art to reciprocate a plunger 9 within the Vposed to therear of the boilerfront.

bolt-holes 19, whereby the two halves may be securely bolted together.The lower portion of the ramcase is provided with a down'-wardly-extending ange 20, adapted to be bolted against the lower portionof the front face of the retort by means of bolts 21. The upper portionof vthe ramcase is provided with an upwardly-extending ange 22, adaptedto be secured to the upper part of the front face of the retort.

The retort has rearwardly-extending side walls 23said walls alsoextending upwardly, the front faces 24f'thereofrbeing adjacent to theinside face of the boiler-front. The flange 2 of the upper portion 16 ofthe ram-case extends a' slight distance beyond the top edge of theretort-ange, disposed within the openingr in the boiler-front, and astheupper portion of the ra1n-case is bolted into position the boiler-frontis clamped between the upper portion of the liange thereof and theupwardly-extending side walls of the retort dis- As the boiler-frontbecomes heated warping thereof is prevented.

It will thus be readly seen that the ramcase is very readily accessiblefor inspection and repairs without moving the entire ramcase structureand the fluid-cylinder, as has heretofore been necessary, in order togainl access to the ram-chamber.

Although I have described my invention as applied to stokers of theunderfeed type, it is applicable to stokers of other types, and

changes in the structure thereof may be read.-

the furnace-chamber, a chargingcylinder for said stoking mechanismdisposed at the outside of the furnace-chamber for charging fuel intosaid retort, and means for clamping the furn ace-front between saidcharging-cylinder and said retort, substantially as described.

2. The combination with a furnace, of stoking mechanism associatedtherewith, a front for said furnace, an opening therein, a retort forsaid stoking mechanism disposed within said furnace-chamber andextending rearwardly from said opening, a charging-cylinder for chargingfuel into said retort disposed at the outside of said furnace, and meansfor clamping the\front of said furnace between said charging-cylinderand said retort, substantially as described.

3. The combination with a furnace, of stok- I ing mechanism associatedtherewith, a metallic front for said furnace, an opening in said front,a retort for said stoking mechanism extending rearwardly from saidopening and having a flange at its forward end, side walls on saidretort extending rearwardly and upwardly, the front edge of said sidewalls be- @Satn I .i ing in alinement with the inner face of thefnrnace-frona charging-cylinder for said stoking mechanism forchargingfuel into said retort, said cylinder being anged at its for-V ward endwhereby it may be secured to the flanged end of the retort, thefurnace-front extending downwardly between said side walls of the retortand the flanged end of said charging-cylinder whereby said front issecurely held in place and prevented from warp Y ing, substantially asdescribed.

4. The combination with a furnace, of stoking mechanism associatedtherewith, a metallic front for said furnace, an opening in said front,a retort for said stoking mechanism extendingrrearwardly from saidopening and having a flange at its forward end adapted to fit into andproject through said opening so that' the face thereof is in alinementwith the front face of the furnace-front, side walls on said retortextending rearwardly and upwardly, the front edge of said side Wal-lsbe# ing in alinement with the inner face of said furnace-front, acharging-cylinder for said stoking mechanism for charging fuel into saidretort, said cylinder terminating in a flange at its forward end wherebyit may be secured `half and a top removable half, each adapted to beseparately secured to said retort, said cylinder being disposed entirelyat the out' side of said furnace whereby the top half thereof may beremoved without moving the lower-half thereof, substan tially asdescribed.

G. The combinationwith a furnace, of stoking mechanism associatedtherewith, a front for said furnace, an opening in said front, a retortfor said stoking mechanism extending rearwardly .from said opening andprovided with a flange at its forward end adapted to lit into andproject through said opening, a charging-cylinder from which fuel ischarged into said retort, a lower half and an upper removable half forsaid charging-cylinder,

IOO

IIC

each terminating in a flange whereby to be whereby the top half thereofmay be removed without moving the lower half thereof, substantially asdescribed.

7. The combination with a furnace, of stokying mechanism associatedtherewith, a retort for said stoking mechanism disposed within thefurnace-chamber, a charging-cylinder for separably secured to theflanged end of the said stoking mechanism disposed at the ont retortprojecting through said opening, said side of the furnace-chamber forcharging fuel charging cylinder being disposed entirely 25 into saidretort, a lower half and an upper without said furnace-front whereby thetop 5 removable half for said charging-cylinder, a half of thecharging-cylinder may be removed metallic front for said furnace, andmeans without moving the lower half thereof, sid'e for clamping saidfront between the upper walls on said retort extending rearwardly halfof said charging-cylinder and said reand upwardly, the front edge ofsaid walls 3o tort, substantially as described. being in alinement withthe inner face of the 8. The combination with a furnace, ofstokfurnace-front, said furnace-front extending ing mechanism associatedtherewith, a metaldownward between said side walls and the lic front forsaid furnace, an opening in said flange onthe upper half of saidchargingfront, a retort for said stoking mechanism cylinder whereby saidfront is securely held 35 extending rearwardly from said opening and andprevented from warping, substantially as 15 having a flange at itsforward end adapted to described.

fit into and project through said opening so In witness whereoflhereunto subscribe my that the face thereof is in alinement with thename this 22d day of April, A. D. 1903.

front face of the furnace-front, a chargingcylinder for charging fuelinto said retort, a FRED A DALEY 2o lower half and a top removable halffor said charging cylinder, each terminating in a flange at its forwardend and adapted to be Vitnesses:

ALBERT A. RAMSDELL, LYNN A. WILLIAMS.

2 'Fo d; anted July 14, 1903, c2 l It hereby certified that in Letterslatent No. 733,374, grf improvement 1S 1 Illinois or an 1 Daley ofChicago, I

o lication of Fred A I I um Cor- Z upon the app an error appears in theprinted specification requ g E in Smoking Mechamsm, 5 2 the word andshould read end and tha 2 a e E motion as fOUOWS. In hue l ,p g 7 th'scorrection therein that the same DCE h 'd Letters Patent should be readwith 1 t e sai I mee.

E may conform to the record of the case 1n the Patent 308 CD. l

: Signed and sealed this 4th day of August, A. D

E. B. MOORE,

Acting Commissioner of Patents.

[SEAL] Correction m the furnace-chamber, a charging-cylinder forseparably secured to the flanged end of the said stoking mechanismdisposed at the ont retort projecting through said opening, said side ofthe furnace-chamber for charging fuel charging cylinder being disposedentirely 25 into said retort, a lower half and an upper without saidfurnace-front whereby the top 5 removable half for saidcharging-cylinder, a half of the charging-cylinder may be removedmetallic front for said furnace, and means without moving the lower halfthereof, sid'e for clamping said front between the upper walls on saidretort extending rearwardly half of said charging-cylinder and saidreand upwardly, the front edge of said walls 3o tort, substantially asdescribed. being in alinement with the inner face of the 8. Thecombination with a furnace, of stokfurnace-front, said furnace-frontextending ing mechanism associated therewith, a metaldownward betweensaid side walls and the lic front for said furnace, an opening in saidflange onthe upper half of said chargingfront, a retort for said stokingmechanism cylinder whereby said front is securely held 35 extendingrearwardly from said opening and and prevented from warping,substantially as 15 having a flange at its forward end adapted todescribed.

fit into and project through said opening so In witness whereoflhereunto subscribe my that the face thereof is in alinement with thename this 22d day of April, A. D. 1903.

front face of the furnace-front, a chargingcylinder for charging fuelinto said retort, a FRED A DALEY 2o lower half and a top removable halffor said charging cylinder, each terminating in a flange at its forwardend and adapted to be Vitnesses:

ALBERT A. RAMSDELL, LYNN A. WILLIAMS.

2 'Fo d; anted July 14, 1903, c2 l It hereby certified that in Letterslatent No. 733,374, grf improvement 1S 1 Illinois or an 1 Daley ofChicago, I

o lication of Fred A I I um Cor- Z upon the app an error appears in theprinted specification requ g E in Smoking Mechamsm, 5 2 the word andshould read end and tha 2 a e E motion as fOUOWS. In hue l ,p g 7 th'scorrection therein that the same DCE h 'd Letters Patent should be readwith 1 t e sai I mee.

E may conform to the record of the case 1n the Patent 308 CD. l

: Signed and sealed this 4th day of August, A. D

E. B. MOORE,

Acting Commissioner of Patents.

[SEAL] Correction m l l l 1 l l It is hereby certified that in LetteraPatent No. 733,374, granted July 14, 1903,

upon the application of Fred A. Dailey, of Chicago, Illinois, for auimprovement in Stoking Mechanism, an error appears in the printedspecification requiring correction, as follows: In line 12.5, page 2,the word and should read end and that the said Letters Patent should beread with thi correction therein that the same may Conform to the recordof the ease in the Patent` Office.

Signed and sealed this 4th day of' August, A. D., 19H3. Y

[SEAL] E. B. MOORE,

Acting Commissioner of Patents.

